function setTextMarkStyle(name) {
    return new ol.style.Style({
        text: new ol.style.Text({
            offsetX: -10,
            offsetY: 10,
            font: 'normal 12px 微软雅黑',
            text: name,
            fill: new ol.style.Fill({ color: '#333' }),
            stroke: new ol.style.Stroke({ color: '#ff2d51', width: 2 })
        }),
    })
}